<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <title>边框</title>
        <meta charset="utf-8" >
    </head>
    <style>
        .a {
            width: 1500px;
            height: 800px;
            border: 5px solid rgba(232, 145, 222, 0.5);
            padding: 10px;
            box-shadow: 10px 10px pink;
            background-image: url(hua.png);
            background-repeat: no-repeat;
            background-position: top center;
            background-origin: padding-box;
        }
    </style>
    <body>
      <div class="a">
          
      </div>

    </body>
</html>